Since , the British Standard for Industrial Fuel Oils, BS, contains two grades of Gas Oil; Class A2 & Class D. The Class A2. Gas Oil BS Class A2. Gas Oil is a distillate fuel manufactured to give clean burning, maximum heat output and efficient combustion in boilers and off-road. Free download of BS – the fuel specification data sheets for Red diesel, gas oil and Red Diesel / Gas Oil 10ppm Specification Sheet (BS Class A2).

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As Gas Oil is a form of diesel it can be used in diesel engines to provide propulsion or generation.

So what is my Gas Oil now? The red dye contains chemical markers in accordance to Customs and Excise requirements and so its illegal use can be easily detected. What’s the British Standard for Gas Oil?

What is Gas Oil? CPS Fuels Information Sheet

In the UK it was found that some modern tractors suffered from poor performance because they were running Class A2 Gas Oil whereas they were designed to operate on fuel that met the higher Ba2869 EN white road diesel fuel specification. The other type of red diesel is class D which is used for sea-going marine vessels, stationary engines, static generators and heating boilers.

Road fuels, Petrol and Diesel have high duty rates applied to them, but other non-road fuels have lower or zero duty rating applied. It was introduced to partner the European emission standards as part of the drive for a cleaner environment. This is one of the claass reasons why red diesel is lower in cost when compared to road diesel.

It has a high calorific value heat content and is thus recommended as a boiler fuel in industrial or agricultural installations with pressure jet burners e. Class A2 covered all off-road vehicles, including trains and tractors. Has Gas Oil specification changed? However, if you would like to, you can change your cookie settings at any time. So init became a requirement that all fuel used in off-highway mobile machinery must comply with EU Ultra Low Sulphur Diesel ULSD regulations, and must therefore contain no more than 10mg of sulphur per kg clasd fuel.


The higher bs28669 cetane rating the shorter the ignition delay. Class A2 gas oil may be used for either application. In the Government changed their legislation as a result of EU pressure to decrease off highway emissions. A European Fuel Quality Directive was set out in which stated that as of 1st Januaryall non-road mobile machinery cllass only contain up to a maximum of 10 milligrams of sulphur for every kilogram of fuel used 10 ppm or 0.

What is Gas Oil? CPS Fuels Information Sheet

The sulphur content for class A2 diesel is 0. Since the change is legislation, and because the majority of Gas Oil used in the UK goes into the Agricultural and Commercial markets to power engines, UK refiners and importers have focused on supplying the UK with diesel which meets the highest possible required European standard EN Gas Oil supplied from September onwards is winterised.

Both our suppliers, and CPS Fuels, reserve the right to alter the specification without notice. It is published by the European Committee for Standardization and it describes the physical properties of the fuel. CPS Fuels Gas Oil meets the same BS EN specifications as white road diesel and is therefore suitable for use in all farm machinery without the need for fuel treatments or additives.

As very few engines or burners can now legally use Class D fuel, the fuel industry has concentrated on making, storing, and distributing Class A2.

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Bs28699 Oil s2 a “dual purpose” fuel. We use cookies to ensure that we give you the best experience on our website. Gas Oil is permitted for use in Tractors, hence Tractor Diesel, and on Farms, hence Farm or Agricultural Diesel, and is marked with a red dye to reflect this. It can also be used in a diesel engine fuelling off-the-highway equipment such as farm tractors, construction equipment, railway and marine engines, and stationary diesel engines or generators.

Nothing on this specification, or in this article, constitutes a guarantee. John Deere, in particular, specify that fuel used within their engines must comply with the higher BS EN white road diesel fuel specification in order to guarantee performance and avoid invalidating warranties.

If you continue without changing your settings, we’ll assume that you are happy to receive all cookies on our website. A lot of the confusion around Gas Oil, and the variety of different names, has come both from its variety of different uses, and changes to product specification over the last few decades. The Class A2 specification is suitable for both diesel engines and furnace applications whilst the Class D specification is only suitable for furnace applications such as boilers, dryers and roadstone coating plants, but not suitable for diesel engines.

We will expand on this later. The sulphur content of class D diesel is 0. In an update was made in the UK to British Standard BS for gas oil red diesel requiring a limit of 10mg of sulphur per kg fuel for mobile off-road equipment.

It can be called: EN is the current standard for all automotive diesel fuel sold in the European Union member states.